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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <windows.h>
#include <fstream>
#include "base/base_paths.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_util.h"
#include "chrome/installer/util/delete_tree_work_item.h"
#include "chrome/installer/util/work_item.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class DeleteTreeWorkItemTest : public testing::Test {
protected:
void SetUp() override { ASSERT_TRUE(temp_dir_.CreateUniqueTempDir()); }
// The temporary directory used to contain the test operations.
base::ScopedTempDir temp_dir_;
};
// Simple function to dump some text into a new file.
void CreateTextFile(const std::wstring& filename,
const std::wstring& contents) {
std::ofstream file;
file.open(filename.c_str());
ASSERT_TRUE(file.is_open());
file << contents;
file.close();
}
const wchar_t text_content_1[] = L"delete me";
} // namespace
// Delete a tree without key path. Everything should be deleted.
TEST_F(DeleteTreeWorkItemTest, DeleteTreeNoKeyPath) {
// Create tree to be deleted.
base::FilePath dir_name_delete(temp_dir_.path());
dir_name_delete = dir_name_delete.AppendASCII("to_be_delete");
base::CreateDirectory(dir_name_delete);
ASSERT_TRUE(base::PathExists(dir_name_delete));
base::FilePath dir_name_delete_1(dir_name_delete);
dir_name_delete_1 = dir_name_delete_1.AppendASCII("1");
base::CreateDirectory(dir_name_delete_1);
ASSERT_TRUE(base::PathExists(dir_name_delete_1));
base::FilePath dir_name_delete_2(dir_name_delete);
dir_name_delete_2 = dir_name_delete_2.AppendASCII("2");
base::CreateDirectory(dir_name_delete_2);
ASSERT_TRUE(base::PathExists(dir_name_delete_2));
base::FilePath file_name_delete_1(dir_name_delete_1);
file_name_delete_1 = file_name_delete_1.AppendASCII("File_1.txt");
CreateTextFile(file_name_delete_1.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_1));
base::FilePath file_name_delete_2(dir_name_delete_2);
file_name_delete_2 = file_name_delete_2.AppendASCII("File_2.txt");
CreateTextFile(file_name_delete_2.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_2));
// Test Do().
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
std::vector<base::FilePath> key_files;
scoped_ptr<DeleteTreeWorkItem> work_item(
WorkItem::CreateDeleteTreeWorkItem(dir_name_delete, temp_dir.path(),
key_files));
EXPECT_TRUE(work_item->Do());
// everything should be gone
EXPECT_FALSE(base::PathExists(file_name_delete_1));
EXPECT_FALSE(base::PathExists(file_name_delete_2));
EXPECT_FALSE(base::PathExists(dir_name_delete));
work_item->Rollback();
// everything should come back
EXPECT_TRUE(base::PathExists(file_name_delete_1));
EXPECT_TRUE(base::PathExists(file_name_delete_2));
EXPECT_TRUE(base::PathExists(dir_name_delete));
}
// Delete a tree with keypath but not in use. Everything should be gone.
// Rollback should bring back everything
TEST_F(DeleteTreeWorkItemTest, DeleteTree) {
// Create tree to be deleted
base::FilePath dir_name_delete(temp_dir_.path());
dir_name_delete = dir_name_delete.AppendASCII("to_be_delete");
base::CreateDirectory(dir_name_delete);
ASSERT_TRUE(base::PathExists(dir_name_delete));
base::FilePath dir_name_delete_1(dir_name_delete);
dir_name_delete_1 = dir_name_delete_1.AppendASCII("1");
base::CreateDirectory(dir_name_delete_1);
ASSERT_TRUE(base::PathExists(dir_name_delete_1));
base::FilePath dir_name_delete_2(dir_name_delete);
dir_name_delete_2 = dir_name_delete_2.AppendASCII("2");
base::CreateDirectory(dir_name_delete_2);
ASSERT_TRUE(base::PathExists(dir_name_delete_2));
base::FilePath file_name_delete_1(dir_name_delete_1);
file_name_delete_1 = file_name_delete_1.AppendASCII("File_1.txt");
CreateTextFile(file_name_delete_1.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_1));
base::FilePath file_name_delete_2(dir_name_delete_2);
file_name_delete_2 = file_name_delete_2.AppendASCII("File_2.txt");
CreateTextFile(file_name_delete_2.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_2));
// test Do()
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
std::vector<base::FilePath> key_files(1, file_name_delete_1);
scoped_ptr<DeleteTreeWorkItem> work_item(
WorkItem::CreateDeleteTreeWorkItem(dir_name_delete, temp_dir.path(),
key_files));
EXPECT_TRUE(work_item->Do());
// everything should be gone
EXPECT_FALSE(base::PathExists(file_name_delete_1));
EXPECT_FALSE(base::PathExists(file_name_delete_2));
EXPECT_FALSE(base::PathExists(dir_name_delete));
work_item->Rollback();
// everything should come back
EXPECT_TRUE(base::PathExists(file_name_delete_1));
EXPECT_TRUE(base::PathExists(file_name_delete_2));
EXPECT_TRUE(base::PathExists(dir_name_delete));
}
// Delete a tree with key_path in use. Everything should still be there.
TEST_F(DeleteTreeWorkItemTest, DeleteTreeInUse) {
// Create tree to be deleted
base::FilePath dir_name_delete(temp_dir_.path());
dir_name_delete = dir_name_delete.AppendASCII("to_be_delete");
base::CreateDirectory(dir_name_delete);
ASSERT_TRUE(base::PathExists(dir_name_delete));
base::FilePath dir_name_delete_1(dir_name_delete);
dir_name_delete_1 = dir_name_delete_1.AppendASCII("1");
base::CreateDirectory(dir_name_delete_1);
ASSERT_TRUE(base::PathExists(dir_name_delete_1));
base::FilePath dir_name_delete_2(dir_name_delete);
dir_name_delete_2 = dir_name_delete_2.AppendASCII("2");
base::CreateDirectory(dir_name_delete_2);
ASSERT_TRUE(base::PathExists(dir_name_delete_2));
base::FilePath file_name_delete_1(dir_name_delete_1);
file_name_delete_1 = file_name_delete_1.AppendASCII("File_1.txt");
CreateTextFile(file_name_delete_1.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_1));
base::FilePath file_name_delete_2(dir_name_delete_2);
file_name_delete_2 = file_name_delete_2.AppendASCII("File_2.txt");
CreateTextFile(file_name_delete_2.value(), text_content_1);
ASSERT_TRUE(base::PathExists(file_name_delete_2));
// Create a key path file.
base::FilePath key_path(dir_name_delete);
key_path = key_path.AppendASCII("key_file.exe");
wchar_t exe_full_path_str[MAX_PATH];
::GetModuleFileNameW(NULL, exe_full_path_str, MAX_PATH);
base::FilePath exe_full_path(exe_full_path_str);
base::CopyFile(exe_full_path, key_path);
ASSERT_TRUE(base::PathExists(key_path));
VLOG(1) << "copy ourself from " << exe_full_path.value()
<< " to " << key_path.value();
// Run the key path file to keep it in use.
STARTUPINFOW si = {sizeof(si)};
PROCESS_INFORMATION pi = {0};
base::FilePath::StringType writable_key_path = key_path.value();
ASSERT_TRUE(
::CreateProcessW(NULL, &writable_key_path[0],
NULL, NULL, FALSE, CREATE_NO_WINDOW | CREATE_SUSPENDED,
NULL, NULL, &si, &pi));
// test Do().
{
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
std::vector<base::FilePath> key_paths(1, key_path);
scoped_ptr<DeleteTreeWorkItem> work_item(
WorkItem::CreateDeleteTreeWorkItem(dir_name_delete, temp_dir.path(),
key_paths));
// delete should fail as file in use.
EXPECT_FALSE(work_item->Do());
}
// verify everything is still there.
EXPECT_TRUE(base::PathExists(key_path));
EXPECT_TRUE(base::PathExists(file_name_delete_1));
EXPECT_TRUE(base::PathExists(file_name_delete_2));
TerminateProcess(pi.hProcess, 0);
// make sure the handle is closed.
WaitForSingleObject(pi.hProcess, INFINITE);
}
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